I recently purchased a replacement relay board due to my heater relay failing. I installed the new board per the video instructions on the website. I ran a full successful batch, but when I pressed no defrost, the machine made some clicking noises and SSR mode showed up beneath the freeze dryer name. From what I have read online, my software may need updated. It currently has version 19. Should I update the software? Has the board you sent me failed?

Your freeze dryer is currently on software version 19. We recommend updating the software to the latest version.

This can help improve the overall performance of your freeze dryer and resolve any potential software-related issues. Here is a video showing how to update your software:

As for the new relay board, if your freeze dryer successfully completed a full batch after the installation, it’s unlikely that the new board has failed. However, if you continue to experience issues, it may be necessary to further investigate the relay board.